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/*
* Copyright 2000-2013 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.openapi.ui;
import org.intellij.lang.annotations.MagicConstant;
import java.awt.*;
import java.io.Serializable;
public class VerticalFlowLayout extends FlowLayout implements Serializable {
public static final int BOTTOM = 2;
public static final int MIDDLE = 1;
public static final int TOP = 0;
private boolean myVerticalFill;
private boolean myHorizontalFill;
private final int vGap;
private final int hGap;
@MagicConstant(intValues = {TOP, MIDDLE, BOTTOM})
public @interface VerticalFlowAlignment {}
public VerticalFlowLayout() {
this(TOP, 5, 5, true, false);
}
public VerticalFlowLayout(@VerticalFlowAlignment int alignment) {
this(alignment, 5, 5, true, false);
}
public VerticalFlowLayout(boolean fillHorizontally, boolean fillVertically) {
this(TOP, 5, 5, fillHorizontally, fillVertically);
}
public VerticalFlowLayout(@VerticalFlowAlignment int alignment, boolean fillHorizontally, boolean fillVertically) {
this(alignment, 5, 5, fillHorizontally, fillVertically);
}
public VerticalFlowLayout(int hGap, int vGap) {
this(TOP, hGap, vGap, true, false);
}
public VerticalFlowLayout(@VerticalFlowAlignment int alignment, int hGap, int vGap, boolean fillHorizontally, boolean fillVertically) {
setAlignment(alignment);
this.hGap = hGap;
this.vGap = vGap;
myHorizontalFill = fillHorizontally;
myVerticalFill = fillVertically;
}
@Override
public void layoutContainer(Container container) {
Insets insets = container.getInsets();
int i = container.getSize().height - (insets.top + insets.bottom + vGap * 2);
int j = container.getSize().width - (insets.left + insets.right + hGap * 2);
int k = container.getComponentCount();
int l = insets.left + hGap;
int i1 = 0;
int j1 = 0;
int k1 = 0;
for(int l1 = 0; l1 < k; l1++){
Component component = container.getComponent(l1);
if (!component.isVisible()) continue;
Dimension dimension = component.getPreferredSize();
if (myVerticalFill && l1 == k - 1){
dimension.height = Math.max(i - i1, component.getPreferredSize().height);
}
if (myHorizontalFill){
component.setSize(j, dimension.height);
dimension.width = j;
}
else{
component.setSize(dimension.width, dimension.height);
}
if (i1 + dimension.height > i){
a(container, l, insets.top + vGap, j1, i - i1, k1, l1);
i1 = dimension.height;
l += hGap + j1;
j1 = dimension.width;
k1 = l1;
continue;
}
if (i1 > 0){
i1 += vGap;
}
i1 += dimension.height;
j1 = Math.max(j1, dimension.width);
}
a(container, l, insets.top + vGap, j1, i - i1, k1, k);
}
private void a(Container container, int i, int j, int k, int l, int i1, int j1) {
int k1 = getAlignment();
if (k1 == 1){
j += l / 2;
}
if (k1 == 2){
j += l;
}
for(int l1 = i1; l1 < j1; l1++){
Component component = container.getComponent(l1);
Dimension dimension = component.getSize();
if (component.isVisible()){
int i2 = i + (k - dimension.width) / 2;
component.setLocation(i2, j);
j += vGap + dimension.height;
}
}
}
public boolean getHorizontalFill() {
return myHorizontalFill;
}
public void setHorizontalFill(boolean flag) {
myHorizontalFill = flag;
}
public boolean getVerticalFill() {
return myVerticalFill;
}
public void setVerticalFill(boolean flag) {
myVerticalFill = flag;
}
@Override
public Dimension minimumLayoutSize(Container container) {
Dimension dimension = new Dimension(0, 0);
for(int i = 0; i < container.getComponentCount(); i++){
Component component = container.getComponent(i);
if (!component.isVisible()) continue;
Dimension dimension1 = component.getMinimumSize();
dimension.width = Math.max(dimension.width, dimension1.width);
if (i > 0){
dimension.height += vGap;
}
dimension.height += dimension1.height;
}
Insets insets = container.getInsets();
dimension.width += insets.left + insets.right + hGap * 2;
dimension.height += insets.top + insets.bottom + vGap * 2;
return dimension;
}
@Override
public Dimension preferredLayoutSize(Container container) {
Dimension dimension = new Dimension(0, 0);
for(int i = 0; i < container.getComponentCount(); i++){
Component component = container.getComponent(i);
if (!component.isVisible()) continue;
Dimension dimension1 = component.getPreferredSize();
dimension.width = Math.max(dimension.width, dimension1.width);
if (i > 0){
dimension.height += hGap;
}
dimension.height += dimension1.height;
}
Insets insets = container.getInsets();
dimension.width += insets.left + insets.right + hGap * 2;
dimension.height += insets.top + insets.bottom + vGap * 2;
return dimension;
}
}
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